Appendix A: Troubleshooting
Contents
1. Die Bel ftungs ffnungen nicht blockieren oder auf falscher Ober fl che wie Bett Sofa usw stellen Durch die Blockierung kann es zur Zerst rung des Ger tes durch berhitzung kommen Versuchen Sie niemals dieses Ger t selbst zu warten da beim ffnen oder Abnehmen des Geh uses die Gefahr eines elektrischen Schlages besteht Keine Gegenst nde auf das Anschlu kabel stellen damit es nicht durch scharfe Kanten zerst rt werden kann Keinerlei Gegenst nde durch die ffungen in das Ger t stecken da es dadurch sonst zu Kurzschl ssen kommen kann Bei St rungen des Ger tes den Wartungsdienst verst ndigen Bei Reperaturen d rfen nur Orginalersatzteile oder Bauteile mit gleichen Eigenschaften verwendet werden Andere Bauteile k nnen Feuer elektrischen Schlag oder andere Gefahren verursachen Nach Beendigung von Wartungsarbeiten oder Reperaturen durch den Kundendienst sollte die Sicherheitspr fung durchgef hrt werden Bei l ngerem Stillstand des Ger tes ist diese von der Versorgungs spannung zu trennen Dies verhindert eine Besch digung des Ger tes durch eine berspannung in der Zuleitung Der arbeitsplatzbezogene L rmschutzpegel nach DIN 45 635 ist kleiner 70dB A Regulatory Standards Compliance D 5 Appendix E Product Support Services Product Registration Problem Report Fill in the Owner Registration Card and mail it to Accton Technology Corporation Accton will keep yo2. Forwarding 2 8 Full Half 2 11 Link 2 6 Receive 2 5 Statistical Display 2 6 Status 2 4 Transmit 2 5 Utilization 2 7 SwitcHub 8se User s Guide Limited Warranty E 4 Link Indicator 3 7 Maximum Cable Length C 1 Twisted Pair 3 7 Mounting Switches in a Rack 3 3 P Package Contents iii Packet Filtering Display 4 4 Packet Forwarding Display 4 3 Port and Cable Assignments B 1 Port Connections AUI Port 2 13 3 5 BNC Port 2 14 3 5 Daisy Chain 3 4 Fiber Optic 3 6 RJ 45 Port 2 12 3 3 Port Diagnostic Test 2 10 Port Status Display 4 3 Power Socket 2 14 Pre Installation Requirements 3 1 Product Specifications C 1 Product Support Services E 1 Accton Offices E 6 Bulletin Board Service E 2 Hardware Repair Service E 1 Interactive Fast Fax E 3 Ordering Information E 6 Software Update and Upgrade Service E 2 Technical Support E 3 Providing Power to the SwitcHub 3 6 Q Quick Installation v 2 Index R RJ 45 Ports 2 12 S Safety Compliance D 4 Setup and Configuration 4 1 System Setup 4 1 Stacking Switches without a Rack 3 2 Standards Compliance D 1 Switching Criteria 1 3 Switching Technology 1 1 System Diagnostic Test 2 10 T Troubleshooting 2 6 Configuration A 3 Installation A 2 Switch Indicators A 1 V Verifying System Operation 3 7 EH2005 TX MccTon Ir
3. VAC 0 C to 40 C Standard Operating 5 to 95 Noncondensing CE Mark FCC Class A VCCI Class 1 CISPR Class A IEC 801 2 3 4 EN60555 2 Class A EN60555 3 UL CSA TUV GS filtering forwarding and learning At line speed At line speed less than 20 microseconds 4K entries per system 64K bytes port for 10 Mbps ports 160K bytes port for 100 Mbps ports Specifications Appendix D Regulatory Standards Compliance EMI Certification Warnings FCC Class A Warning This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A digital device pursuant to Subpart B of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures are required to correct the interference You may use unshielded twisted pair UTP for RJ 45 connections 1 Wear an anti static wrist strap or take other suitable measures to prevent electrostatic discharge whenever handling this equipment 2 When connecting this device to a power outlet connect the field ground lead on the tri pole power plug t
4. pin interface specified by the IEEE 802 3 standard for connecting a network device to 10 Mbps Ethernet This port can be connected to a variety of media types including thin or thick Ethernet or fiber optic cable via an Ethernet transceiver or Media Access Unit MAU BNC An interface specified by the IEEE 802 3 standard for connecting a PC server or other network device to a thin Ethernet backbone The BNC connector is a half twist locking shell typically used for thin coaxial cable Glossary 1 SwitcHub 8se User s Guide Bus Topology A broadcast arrangement in which all network stations receive the same message through the cable at the same time Collision A condition in which two packets transmitted over a medium interferes with each other Their interference makes both signals unintelligible Combo Port A combination port found on the SwitcHub which includes RJ 45 AUI BNC media options This port automatically detects the current media type in use Configuration The way to set up a computer server or local area network Connection A logical binding between two or more users of an interconnection service Daisy Chain Port An MDI RJ 45 port used to cascade compatible devices in a daisy chain configuration using straight through twisted pair cable To cascade two devices either run a connection from the daisy chain port on one device to a station port on the other device or cascade the two devices b
5. the address listed below If you ship the product you must assume the risk of damage or loss in transit You must use the original container or the equivalent and pay the shipping charge Accton may replace or repair the product with either a new or reconditioned product and the returned product becomes Accton s property At Accton s sole discretion Accton will issue a credit for either a comparable replacement Accton product or credit the original purchase price towards the purchase of any Accton product for any unrepairable defective product This warranty does not cover replacement of products damaged by abuse accident misuse neglect alteration repair disaster improper installation or improper testing ACCTON SHALL NOT BE HELD LIABLE FOR ANY LOSS OF PROFITS LOSS OF USE INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES CAUSED BY THE USE OF THIS PRODUCT OR INABILITY TO USE IT EVEN IF THE COMPANY OR ACCTON HAS BEEN ADVISED OF SUCH LIABILITY OR OTHER SPECIAL CLAIMS If you purchased this product in the USA be aware that some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state All parts or components contained in
6. 52 8988 To obtain software upgrades connect via ftp to ftp accton com tw Send your technical questions by email to support accton com tw Mail your technical questions to International Headquarters USA Headquarters Accton Technology Corporation Accton Technology Corporation Attn Technical Support Attn Technical Support No 1 Creation Road III 1962 Zanker Road Science based Industrial Park San Jose CA 95112 U S A Hsinchu 300 Taiwan R O C During local business hours call International Headquarters USA Headquarters Monday through Friday Monday through Friday 8 am to 6 p m 7 am to 5 p m Pacific Time 886 3 5770 270 408 452 8900 or 800 926 9288 Product Support Services E 3 SwitcHub 8se User s Guide Limited Warranty Customer Remedies Accton warrants to the original owner that the product delivered in this package will be free from defects in material and workmanship for the lifetime of the product For the warranty to apply you must register your purchase by returning the registration card indicating the date of purchase and including proof of purchase There will be a minimal charge to replace consumable components such as fuses power transformers and mechanical cooling devices The warranty does not cover the product if it is damaged in the process of being installed Accton recommends that you have the company from whom you purchased this product install it THE ABOVE WARRANT
7. Appendix A Troubleshooting Diagnosing Switch Indicators The SwitcHub 8se can be easily monitored through its compre hensive front panel indicators These indicators assist the network manager in identifying problems the switch may encounter This section describes common problems you may encounter and possible solutions Symptom Link indicator does not light up green LED after making a connection Cause Workstation s network adapter cable or switch port is defective Solution The most common cause for a bad connection to a workstation or server is a defective network adapter or cable connection Check the workstation s network adapter and cable connections for possible defects Replace the defective adapter or cable Symptom CPU indicator displays a steady green light long after power on Cause Defective CPU or power supply Solution Have your unit s CPU or power supply replaced Ask for dealer assistance Use the diagnostic procedures described in Chapter 2 i e refer to the section on Diagnostic Display Mode to verify that all other system components are functioning properly If any component fails the diagnostic test contact your Accton distributor for assistance Troubleshooting A 1 SwitcHub 8se User s Guide System Diagnostics Installation Verify that all system components have been properly installed If one or more components appear to be malfunctioning then test them in an alte
8. F via an external transceiver Thick Ethernet is used as a bus type backbone while fiber optic cabling can be Pin 15 Figure B 2 AUI Port used as an long distance inter repeater link or a long distance uplink aS hee Assignment 1 Collision In Shield 2 Collision In 3 Data Out 4 Data In Shield 5 Data In 6 DC Power Common 9 Collision In 10 Data Out 11 Data Out Shield 12 Data In 13 DC Power 4 14 Power Shield 7 8 15 No Connection Table B 2 AUI Pin Assignments B 2 Port and Cable Assignments Appendix C Specifications Product Specifications Basic Criteria Switching Criteria Access Method Standards Conformance Media Supported Number of Ports Dimensions Input Power Power Consumption Temperature Humidity Certification Emissions Immunity Safety Network Bridging Function Maximum Filtering Rate Maximum Forwarding Rate Network Latency Address Table Queue Buffer CSMA CD 10 Mbps and 100 Mbps IEEE 802 3 10BASE T 10BASE2 AUI IEEE 802 3u 100BASE TX 10BASE T 100Q Category 3 4 5 twisted pair cable 10BASE2 Thin Ethernet AUI Thick Ethernet or fiber optic Ethernet via AUI transceiver 100BASE TX 100Q Category 5 twisted pair cable 5 10BASE T and 2 100BASE TX RJ 45 ports and 1 RJ 45 AUI BNC Combo 10 Mbps port 440mm x 240mm x 43mm 17 37 x 9 45 x 1 69 Full range power input 100 240 VAC 10 50 60 Hz 3Hz 0 52 Amp at 100 VAC 0 25 Amp at 240
9. Y IS IN LIEU OF ANY OTHER WARRANTY WHETHER EXPRESS IMPLIED OR STATUTORY INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR ANY WARRANTY ARISING OUT OF ANY PROPOSAL SPECIFICATION OR SAMPLE ACCTON SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ACCTON NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY If the product is found to be defective within the first two years from the later of date of purchase or date of manufacture Accton s entire liability and your exclusive remedy for any breach of warranty shall be at its option to repair or replace the product at no charge except as set forth below If the product is found to be defective after two years from the later of date of purchase or date of manufacture Accton will charge a process and handling fee provided that you deliver the product along with a return material authorization RMA number either to the company from whom you purchased it or to Accton Accton warrants the repaired or replaced product to be free from defects in material and workmanship for the remainder of the original product s warranty period Consumable components are warranted only for two years E 4 Product Support Services SwitcHub 8se User s Guide Return Process Before you may return any Accton product to Accton you must request an RMA number by calling FAXing or writing Accton s Service Department at
10. cable type designed by IBM Terminator A resistor placed at each end of a thin or thick Ethernet cable to make sure that signals do not reflect back and cause errors UTP Unshielded Twisted Pair Cable composed of two insulated wires twisted together to reduce electrical interference used in common telephone cord 4 Glossary Index 1 100BASE TX 1 2 10BASE T 1 2 A Accton s Ethernet Switch SwitcHub 8se 1 2 Applications 5 1 High Bandwidth File Server 5 2 High Speed Link between Switches e 5 3 Multiport Bridge with High Bandwidth Backbone 5 1 AUI Port 2 13 Bandwidth Utilization Display 4 3 BNC Port 2 14 C Configuration Using the Configure Button 4 2 Configure Button 2 2 Long Press 4 3 Short Press 4 3 Connecting the Switch System 3 3 Connecting to a Server or Workstation e 3 3 Connecting to a Trunk Line 3 5 Connecting to Another Network Interconnection Device 3 4 Connection Verifying 3 7 Crossover Cable B 1 Cut Through Switching 1 2 Index D Demonstration Function 4 4 Diagnostic Function 4 4 Diagnostic Tests 4 1 E EMI Warning D 1 Ethernet Ports 2 12 Ethernet Trunk Connection 3 4 F Filter Packets 1 1 Forward Packets 1 1 Full Half Duplex Mode Selection 4 4 H Hardware Description 2 1 Hardware Installation 3 1 3 2 L LED Indicators Collision 2 4 CPU 2 3 Demo 2 9 Diag 2 9 Filtering 2 8
11. ce Accton constantly improves its software units by adding enhancements and new features Minor software updates are free of charge If greater changes have been made to the software Accton offers software upgrade services at a specially reduced price Bulletin Board Service BBS e In countries other than the U S call 886 3 5770 654 to reach Accton Taiwan s modem line Modems with 14400 through 2400 baud are supported Choose 8 data bits 1 stop bit and no parity Standard VT100 terminal emulation is supported e Inthe United States call 408 452 8828 to reach the Accton USA s BBS line Modems with 14400 through 2400 baud are supported Choose 8 data bits 1 stop bit and no parity Standard VT100 terminal emulation is supported E 2 Product Support Services SwitcHub 8se User s Guide Interactive Fast Fax U S A office Printed technical documentation can be FAX ed to your FAX machine 24 hours a day Technical Support Call 408 452 8811 to reach Accton s interactive Fast FAX service You will need a Touch Tone phone and a FAX machine or equivalent Choose document 911 for a listing of technical bulletins Your dealer or installer is the person who understands your network and Accton units If neither is available to help you Accton technical support engineers are available by FAX mail or phone Send your technical questions by FAX to International Headquarters 886 3 5770 267 USA Headquarters 408 4
12. elp Street Chatswood N S W 2067 Australia Phone 61 2 9410 9860 Fax 61 2 9410 9861 BBS 61 2 9410 9862 Accton Japan Kano Bldg 7F 1 25 1 Nishi Gotanda Shinagawa ku 141 Tokyo Japan Phone 81 3 3495 1351 Fax 81 3 3495 1352 8 port Ethernet switch AUI to BNC transceiver AUI to 1OBASE T transceiver AUI to ST Fiber Optic transceiver E 6 Product Support Services Glossary 10BASE2 IEEE s specifications for running 10 Mbps Ethernet using thin coaxial cable 500 RG 58 A cable segment can be up to 185 meters long and have a maximum of 30 nodes 10BASE5 IEEE s specifications for running 10 Mbps Ethernet using thick yellow coaxial cable 50Q A cable segment can be up to 500 meters long and have a maximum of 100 nodes 10BASE F IEEE s specifications for running 10 Mbps Ethernet using multi mode fiber cable for point to point connections The maximum length of cable for a point to point connection is 2 kilometers The maximum number of nodes is undefined 10BASE T IEEE s specifications for running 10 Mbps Ethernet using twisted pair cable 100Q STP or UTP The maximum length of cable for a point to point connection is 100 meters and the maximum number of nodes is 1024 100BASE TX IEEE s specifications for 100 Mbps Ethernet using twisted pair cable Category 5 100Q STP or UTP The maximum length of cable for a point to point connection is 100 meters AUI Attachment Unit Interface A 15
13. er switch or hub Pin out assignments are shown in Appendix B MDI X Port Medium Dependent Interface Crossed This RJ 45 port which crosses the receive and transmit signals internally can be used with straight through cable to connect the switch to any device that has a standard network interface e g workstation server bridge or router Pin out assignments are shown in Appendix B RJ 45 Connector Most common terminator for twisted pair wiring Star Topology Physical connections for RJ 45 ports are limited to a star configuration i e similar to a hub and spoke arrangement This topology also requires that only one path exists between any two nodes and that data transmitted by any node is concurrently available to all other nodes within the same local network i e immediate collision domain Glossary 3 SwitcHub 8se User s Guide Station Port MDI X ports which are used for connecting the switch to any workstation or server that has a properly installed network adapter card For RJ 45 ports 1 and 7 the selector switch must be set to MDI X STP Shielded Twisted Pair Twisted pair wire covered with an external aluminum foil or woven copper shield designed to reduce excessive noise pick up or radiation The STP cable refered to in this manual is also sometimes called screened twisted pair ScTP Its impedance is 100Q and has the same pin assignment as UTP This cable should not be confused with the older 150Q
14. imum length of 15 feet Parallel blade grounding type attachment plug rated 15A 125V UL Listed CSA Certified Cord Set Minimum 18 AWG Type SVT or SJ T three conductor cord Maximum length of 15 feet Tandem blade grounding type attachment plug rated 15A 125V 240 Volts For Europe only Male plug rated 6A 250V Cord Set with HOSVV F cord having three conductors with minimum diameter of 0 75 mm IEC 320 receptacle The unit will automatically select the setting that matches the input voltage connected Therefore no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel D 4 Regulatory Standards Compliance SwitcHub 8se User s Guide Sicherheitshinweise 1 2 11 12 13 Die Steckdose mu sich in der N he des Ger tes befinden und leicht zug nglich sein Zum Reinigen den Stecker aus der Steckdose ziehen Beim Reinigen keine Fl ssigreiniger oder Sprays verwenden sondern ein angefeuchtetes Tuch Das produkt ger t nicht in Na r ume oder in der N he von Wasser benutzen wie z B Badezimmer Schwimmbad Sp lbecken usw Das Eindringen von Wasser kann zur Zerst rung des Ger tes f hren Das produkt ger t nicht auf einer unstabilen Unterlage wie z B Rollwagen Gestell usw aufstellen Es K nnte herunterfallen und Verletzungen oder Besch digungen von Mensch und Ger t verursachen
15. o a valid earth ground line to prevent electrical hazards Canada Department of Communications Class A This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference causing equipment standard entitled Digital Apparatus ICES 003 of the Department of Communications Cet appareil num rique respecte les limites de bruits radio lectriques applicables aux appareils num riques de Classe A prescrites dans la norme sur le mat riel brouilleur Appareils Num rques NMB 003 dict e par le minist re des Communications Regulatory Standards Compliance D 1 SwitcHub 8se User s Guide Voluntary Control Council for Interference VCCI 1 This equipment is in the Ist Class category and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in commercial and or industrial areas If this product is used in a residential area or in an adjacent area thereto radio interference may be caused to radios and TV receivers etc Read the instructions for correct handling ER LORE HRMS SRSA El CCI OBE CES lt REPRE CT CORES REI CERT AL BK HERBERIFLIENBYIET COMSAT iB FSESBRARALLMHVET European Community Immunity Requirements This unit was tested and found to comply with the Class A limits of EN 55022 CISPR 22 and the immunit
16. rnate environment where all the other components are functioning properly Cabling Verify that the cabling type is correct Be sure all cable connectors are securely seated in the required ports Straight through cable should be used for all standard twisted pair connections 1 When cascading 2 switches using RJ 45 station ports at both ends of the cable i e not the daisy chain port make sure a crossover cable is used Crossover cable should only be used if the daisy chain port is not available on either switch 2 When using thin Ethernet cabling be sure both ends are closed off with 50 ohm terminators 3 Make sure all devices are connected to the network Equipment may have been unintentionally disconnected from the network External Adapters 1 Make sure the network adapter cards installed in the workstations are in good working condition 2 Be sure the media transceivers are functioning properly and the SQE test has been disabled for all transceivers attached to the switches A 2 Troubleshooting SwitcHub 8se User s Guide Configuration If problems occur after altering the network configuration restore the original connections and try to track the problem down by implementing the new changes one step at a time Ensure that cable distances repeater limits and other physical aspects of the installation do not exceed recommendations Switch Integrity As a last resort verify the switch s integri
17. this product are covered by Accton s Limited Lifetime Warranty for this product The product may contain fully tested recycled parts warranted as if new For warranty information All territories except North and South America Accton Technology Corporation International Headquarters No 1 Creation Rd III Science based Industrial Park Hsinchu 300 Taiwan R O C Phone 886 3 5770 270 Fax 886 3 5770 267 BBS 886 3 5770 654 North and South America Accton Technology Corporation USA Headquarters 1962 Zanker Road San Jose CA 95112 U S A Phone 408 452 8900 Fax 408 452 8988 BBS 408 452 8828 Product Support Services E 5 SwitcHub 8se User s Guide Accton Offices Accton Technology Corporation International Headquarters No 1 Creation Rd Ill Science based Industrial Park Hsinchu 300 Taiwan R O C Hsinchu Phone 886 3 5770 270 Fax 886 3 5770 267 886 3 5775 541 BBS 886 3 5770 654 Taipei Phone 886 2 577 1220 to 9 Fax 886 2 577 0816 Accton USA 1962 Zanker Road San Jose CA 95112 USA Phone 408 452 8900 408 452 8080 Fax 408 452 8988 BBS 408 452 8828 FAST FAX 408 452 8811 Accton UK The Mill Horton Road Stanwell Moor Staines Middx TW19 6BJ United Kingdom Phone 44 1753 687677 44 1753 680109 Fax 44 1753 689010 Ordering Information SwitcHub 8se EH2005 TX e TransCoax ll EN2009 TransPair Il EN2032 TransOptic lll EN2031 Accton Australia Level 6 10 H
18. ty with a power on reset Turn the power to the switch off and then on If the problem still persists and you have completed all the preceding diagnoses then contact your Accton distributor for further assistance Refer to Appendix E Troubleshooting A 3 Appendix B Port and Cable Assignments RJ 45 Port NO Figure B 1 RJ 45 Connector on the Switch Side Station Ports 1 8 Assignment Input Receive Data Assignment Daisy Chain Ports 1 7 8 Output Transmit Data 1 2 Input Receive Data 3 Output Transmit Data Output Transmit Data Input Receive Data 6 Output Transmit Data Input Receive Data 45 8 NotUsed Not Used 1 Applies to Ports 1 7 and 8 when Daisy Chain switch is set to MDI X 2 Applies to Ports 1 7 and 8 when Daisy Chain switch is set to MDI Table B I RJ 45 Pin Assignments Schematics for both straight and crossover twisted pair cable are shown below Straight Through Switch Adapter 1 IRD 1 OTD 2 IRD 2 OTD 3 OTD 3 IRD 6 OTD 6 IRD Crossover Switch Switch 1 IRD 1 IRD 2 IRD 2 IRD 3 OTD 3 OTD 6 OTD 6 OTD Port and Cable Assignments B 1 SwitcHub 8se User s Guide AUI Port Pin 1 1 The AUI Port provides a means of interfacing to 10 Mbps O KEITEN G coaxial cable i e thick Ethernet or fiber optic cable e g 10BASE
19. ur record and inform you of any new Accton unit developments If problems occur during unit operation please check the adapter configuration settings cables connectors network terminators hardware compatibility and other network components Write a description of the problem including what problems occurred when they occurred duration of the problems the unit number serial number hardware software and the DOS version that you are using Then contact your dealer or Accton Technology Corporation for assistance Hardware Repair Service You must get an RMA Return Materials Authorization number before returning any hardware for repair To obtain this number please inform Accton of your company name address unit name and model number contact person telephone number and a problem description list If your unit is under repair warranty you must also give your purchase date Carefully pack your hardware If possible use the original carton Mark the RMA number on the carton and send it to your dealer Product Support Services E 1 SwitcHub 8se User s Guide After repair Accton will inform you of the date of delivery and the exact amount due Please send the payment by T T Telegram Transfer and Accton will send you the fixed component after receiving payment With or without warranty if the hardware is found to be free of defects you will only be charged for testing and handling Software Update and Upgrade Servi
20. y requirements of EN50082 1 This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Regulatory Standards Compliance SwitcHub 8se User s Guide CE Mark Declaration of Conformance for EMI and Safety This is to certify that this product complies with ISO IEC Guide 22 and EN45014 It conforms to the following specifications EMC EN55022 1988 CISPR 22 1985 class A EN60555 2 1987 class A EN60555 3 prEN55024 2 1990 IEC 801 2 1991 4kV CD 8kV AD prEN55024 3 1991 IEC 801 3 1984 3V m prEN55024 4 1992 IEC 801 4 1988 1kV power line 0 5kV signal line This product complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Warning Do not plug a phone jack connector in the RJ 45 port This may damage the device Les raccordeurs ne sont pas utilis pour le systeme t l phonique Regulatory Standards Compliance D 3 SwitcHub 8se User s Guide Safety Compliance Underwriters Laboratories Inc Important Before making connections make sure you have the correct Cord Set Check it read the label on the cable against the following specification list Operating Voltage Cord Set Specifications i Volts 240 Volts For North America UL Listed CSA Certified Cord Set Minimum 18 AWG Type SVT or SJT three conductor cord Max
21. y running crossover cable between MDI X station ports on both devices Ethernet A network communication system developed and standardized by DEC Intel and Xerox using baseband transmission CSMA CD access logical bus topology and coaxial cable The successor IEEE 802 3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber optics broadband and twisted pair Fast Ethernet 100 Mbps network communication system based on Ethernet and the CSMA CD access method 2 Glossary SwitcHub 8se User s Guide IEEE 802 3 Standard Standard for the physical and electrical connections in local area networks developed by the IEEE Institute of Electrical and Electronics Engineers The IEEE 802 3u standard covers these same issues for 100 Mbps networks LED Light emitting diode used on the SwitcHub for monitoring a device or network condition Local Area Network LAN A group of interconnected computers and support devices Media Access Control MAC A portion of the networking protocol that governs access to the transmission medium facilitating the exchange of data between network nodes MDI Port Medium Dependent Interface MDI is the IEEE standard for the twisted pair interface to IOBASE T or 100BASE TX This RJ 45 port can be used with straight through cable to connect the switch to a network interconnection device such as anoth
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